四碘荧光素 超蓝

This certified reference material (CRM) is produced and certified in accordance with ISO/IEC 17025 and ISO 17034. This CRM is traceable to primary material from an NMI, e.g. NIST or NMIJ. Certified content by quantitative NMR incl. uncertainty and expiry date are given on the certificate. Download your certificate at: http://www.sigma-aldrich.comErythrosine B (FD&C Red No. 3; E127) is a synthetic xanthene dye—the disodium salt of tetraiodofluorescein—that produces a vivid cherry‑red color. It is widely used as a food dye in candies, frostings/icings, and cocktail or candied cherries. Outside food, it serves as a biological stain and dental plaque disclosing agent and is also used in printing inks. Testing is important to verify identity, purity, and levels against regulatory requirements.

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